All categories

2 years ago

XD PLZ HELP ME I DONT UNDER STAND PLZ IM BEGGING

Mathematics

2 answers:

Virty [35]2 years ago

6 0

Answer:

40 and 202.5 m³

Step-by-step explanation:

(7)

Since the figures are similar then the ratios of corresponding sides are equal, that is

$\frac{PQ}{16}$ = $\frac{30}{12}$ ( cross- multiply )

12 PQ = 480 ( divide both sides by 12 )

PQ = 40 in

-------------------------------------------------------------------

The volume (V) of a pyramid is calculated as

V = $\frac{1}{3}$ Ah ( A is the area of the base and h the height ) , then

V = $\frac{1}{3}$ × 9² × 7.5

= $\frac{1}{3}$ × 81 × 7.5

= 27 × 7.5

= 202.5 m³

Natali [406]2 years ago

5 0

Answer:

the volume for the second page is 607.5

Step-by-step explanation:

You might be interested in

Dinner came out of the oven at 7:15 P.M. after baking for 30 minutes. What time was dinner put into the oven?

spin [16.1K]

Answer:

6:45

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

LITERALLLLLLY DO AT 12

Lyrx [107]

Answer:

New England had skilled craftsmen in the industry of shipbuilding. The Mid-Atlantic presented a diverse workforce of farmers, fisherman, and merchants. The Southern Colonies were primarily agricultural with few cities and limited schools.

Hope this helped :)

7 0

2 years ago

Read 2 more answers

Find the value of 7v-6 given that -8v-9=7 Simplify your answer as much as possible 7v-6=

evablogger [386]

Answer:

-20

Step-by-step explanation:

-8v-9=7

Add 9 to each side

-8v-9+9=7+9

-8v = 16

Divide by -8

-8v /-8 = 16/-8

v = -2

Now find

7v -6

7(-2) -6

-14 -6

-20

4 0

3 years ago

Read 2 more answers

Write an equation of the line that passes through (1, −1) and is perpendicular to the line y=1/2x−3. An equation of the perpendi

lapo4ka [179]

Y = 1/2x - 3. Slope here is 1/2. A perpendicular line will have a negative reciprocal slope. All that means is flip the slope and change the sign. So the perpendicular line will have a slope of -2.

y = mx + b
slope(m) = -2
(1,-1)...x = 1 and y = -1
now we sub and find b, the y int
-1 = -2(1) + b
-1 = -2 + b
-1 + 2 = b
1 = b

so ur perpendicular equation is : y = -2x + 1

6 0

2 years ago

Read 2 more answers

WHAT IS THE ANSWER FOR 12 1/3 + 8 3/4 +17 2/8 +23 2/3=

gulaghasi [49]

$12 \dfrac{1}{3} + 8 \dfrac{3}{4} +17 \dfrac{2}{8} +23 \dfrac{2}{3}$

Simplify
$= 12 \dfrac{1}{3} + 8 \dfrac{3}{4} +17 \dfrac{1}{4} +23 \dfrac{2}{3}$

Change the denominators to be the same
$= 12 \dfrac{1 \times 4}{3 \times 4} + 8 \dfrac{3 \times 3}{4 \times 3} +17 \dfrac{1 \times 3 }{4 \times 3} +23 \dfrac{2 \times 4}{3 \times 4}$

$= 12 \dfrac{4}{12} + 8 \dfrac{9}{12} +17 \dfrac{3 }{12} +23 \dfrac{8}{12}$

Combine into single fraction
$= 60 \dfrac{24}{12}$

$= 62$

6 0

2 years ago